Display screen or portion thereof with graphical user interface



The FIGURE is a front view of a display screen or portion thereof withgraphical user interface showing my new design.

The broken line showing of the display screen or portion thereof formsno part of the claimed design.

The AT&T trademark in the upper left corner of the Figure is aregistered trademark of AT&T Intellectual Property II, L.P. Trademarksare the property of their respective owners.

The ornamental design for a display screen or portion thereof withgraphical user interface, as shown and described.